42655603 has 2 divisors, whose sum is σ = 42655604. Its totient is φ = 42655602.

The previous prime is 42655577. The next prime is 42655637. The reversal of 42655603 is 30655624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42655603 - 2¹³ = 42647411 is a prime.

It is equal to p_2585038 and since 42655603 and 2585038 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42655673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21327801 + 21327802.

It is an arithmetic number, because the mean of its divisors is an integer number (21327802).

Almost surely, 2^42655603 is an apocalyptic number.

42655603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42655603 is an equidigital number, since it uses as much as digits as its factorization.

42655603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 42655603 is about 6531.1257069513. The cubic root of 42655603 is about 349.4019801490.

The spelling of 42655603 in words is "forty-two million, six hundred fifty-five thousand, six hundred three".